Officials are still trying to piece together what prompted an Army veteran to go on a killing spree at a Sikh temple, leaving 7 dead, including the gunman and 4 injured.

Authorities say that 40-year-old, Wade Michael Page acquired the gun used in the shooting legally. Like the Aurora, Colorado movie theater shooting that left 12 dead and 58 wounded, within hours of the Sikh temple shooting there were calls for gun control.

“Just 17 days have passed since the tragic shooting in Aurora. The U.S. Conference of Mayors repeats its call for reasonable changes in our gun laws and regulations that could help to prevent senseless tragedies such as the one that has shocked Oak Creek and the nation.”

Tonight we are learning more about the man police say shot and killed 6 people at the Sikh Temple in Oak Creek Wisconsin. For several years, Wade Michael Page fronted a white supremacist punk band called "End Apathy".

Special investigations unit correspondent Drew Griffin has been working the story for us and is Outfront tonight. FULL POST

The shooter from the Sikh temple rampage left six people killed and four wounded, including a police officer. Another officer shot and killed the attacker. According to the Bureau of Alcohol, Tobacco, Firearms and Explosives the 9 mm semiautomatic handgun used by the suspect was legally purchased. FULL POST